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The field of radio communications continues to change rapidly, and the second edition of this outstanding book, based on a popular IEE Vacation School, has been fully updated to reflect the latest developments. The introduction of new services and the proliferation of mobile communications have produced a growing need for wider bandwidths and the consequent need for frequency reuse. This book introduces the basic concepts and mechanisms of radiowave propogation engineering in both the troposphere and ionosphere, and includes greater emphasis on the needs of digital technologies and new kinds of radio systems. The content reflects the wide experience of an exceptional group of authors and the emphasis throughout is on modelling and prediction methods and the relevant ITU Radiocommunication Sector recommendations. Propagation of Radiowaves, 2nd Edition is essential reading for professionals involved in planning, designing and operating radio systems, as well as postgraduate students in the field.

Propagation of Radiowaves introduces the basic concepts and mechanisms of radiowave propagation engineering in both the troposphere and ionosphere, an understanding of which is fundamental to the effective use of the radio spectrum for radiocommunication. Reflecting the wide experience of the exceptional group of authors, the contents provide a firm background to established theory and introduce the most appropriate models, methods and procedures which are of use to spectrum planners, system designers and operators in assessing the estimated performance of radio systems.

This book treats the phenomena associated with the propagation of short radio waves between terminal points, whether they be the radar antenna serving a dual purpose or the antennas of a communications system. The intention is to present a summary of the state of knowledge in the microwave propagation field at the close of the war. There has been no attempt to produce either a handbook or textbook, but only an interim report on a rapidly changing subject. An attempt has been made to survey all relevant information that was available, from whatever source, and to summarise as much of it as was feasible.

This book describes new, highly effective, rigorous analysis methods for electromagnetic wave problems. Examples of their application to the mathematical modelling of micros trip lines, corrugated flexible waveguides, horn antennas, complex-shaped cavity resonators and periodic structures are considered.

The automotive industry is waking up to the fact that hybrid electric vehicles could provide an answer to the ever-increasing need for lower-polluting and more fuel-efficient forms of personal transport. This is the first book to give comprehensive coverage of all aspects of the hybrid vehicle design, from its power plant and energy storage systems, to supporting chassis subsystems necessary for realising hybrid modes of operation. Key topics covered include hybrid propulsion system architectures, propulsion system sizing, electric traction system sizing and design, loss mechanisms, system simulation and vehicle certification. Offering in-depth coverage of hybrid propulsion topics, energy storage systems and modelling, and supporting electrical systems, this book will be an invaluable resource for practising engineers and managers involved in all aspects of hybrid vehicle development, modelling, simulation and testing. It will also be of interest to postgraduate students in the field.

Worldwide, the automotive industry is being challenged to make dramatic improvements in vehicle fuel economy. In Europe there are CO₂ emissions penalties prorated by the degree to which vehicles exceed mandated CO₂ levels. In the United States, vehicle fuel economy targets set by Congress in 2007 for 20 per cent fuel economy improvement by 2020 are now being accelerated by the Obama administration to 35.5 mpg by 2016 for a passenger car. Taking effect in 2012, the new rules set more aggressive fuel economy measures that will require significant gains in engine and driveline efficiency, better performance cabin climate control and the introduction of electric hybridization. This 2nd Edition of Propulsion Systems for Hybrid Vehicles addresses the electrification innovations that will be required, ranging from low end brake energy recuperators, idle-stop systems and mild hybrids on to strong hybrids of the power split architecture in both single mode and two mode and introducing new topics in plug-in hybrid and battery electrics. Important topics of the 1st Edition are retained and expanded and some outdated material has been replaced with new information.

Protected cruiser (Pantserdekschip) HNLMS Gelderland was a Holland-class cruiser of the Royal Netherlands Navy. This class, of six ships, was considered a modest, but well thought-out design. At a speed of 10 knots the radius of action would have been 8000 miles, while the two triple expansion engines could generate a maximum speed of 19,5 knots.

High quality electrical service is everyday more stringent in utilities and industrial facilities around the world. One of the main players to achieve this is the protection system, which has to be reliable, fast and with a good cost/benefit ratio. This book refers to most aspects of electrical protections, with emphasis on Distribution Systems. Protection of generation and transmission systems are also treated in the text. References to modern topics such as the Distributed Generation, Smart Grid and Standard IEC 61850 have been introduced. Written by two well experienced engineers who combine a comprehensive theoretical background with examples and exercises, this book will allow the reader to easily follow the ideas explored. The book will be valuable to pre and postgraduate students, design, maintenance and consulting engineers as well as instructors looking for proper references.

High quality electrical service is key to power systems around the world, particularly in utilities and industrial facilities. Both voltage and grid frequency must be kept within tight limits to maintain functioning of critical infrastructure. The growing use of renewable power of intermittent character is adding to that challenge.

Written by two practicing electrical engineers, this second edition of the bestselling Protection of Electricity Distribution Networks offers both practical and theoretical coverage of the technologies, from the classical electromechanical relays to the new numerical types, which protect equipment on networks and in electrical plants.



A properly coordinated protection system is vital to ensure that an electricity distribution network can operate within preset requirements for safety for individual items of equipment, staff and public, and the network overall. Suitable and reliable equipment should be installed on all circuits and electrical equipment and to do this, protective relays are used to initiate the isolation of faulted sections of a network in order to maintain supplies elsewhere on the system. This then leads to an improved electricity service with better continuity and quality of supply.

This book is a practitioner's guide to all aspects of pulse Doppler radar. It concentrates on airborne military radar systems since they are the most used, most complex, and most interesting of the pulse Doppler radars; however, ground-based and non-military systems are also included.

Pushing the Envelope, a survey history of the American aircraft (now aerospace) manufacturing industry, is the most comprehensive history on the subject ever completed. Though it covers the development of the industry from the beginnings of flight to the present, it provides far more than a simple chronology by analyzing key economic, military, technical, and international influences on the industry and showing how the industry has been instrumental in American military and technological leadership from its modest beginnings. Using original sources whenever available, Pushing the Envelope focuses on the business of aircraft. It is neither an aeronautical nor a production history of the industry, although both aspects are addressed. Instead, Donald M. Pattillo features the development and production of aircraft in different periods in the context of aeronautical progress. Pushing the Envelope also establishes that the central fact of the industry's existence, its dependence on military contracts, has been simultaneously its greatest strength and greatest vulnerability. Even during periods of military expansion, Pattillo illustrates, it has always been an unstable and insecure enterprise. Carefully researched, Pushing the Envelope also assesses the environmental impacts on the industry, including those pressures that have often led it into ethical dispute. Unlike any other technological industry, the unique qualities of the aircraft industry are truly paradoxical -- although it provides vital technical and production capability to the nation, demand for its capabilities may be influenced by external developments that it cannot foresee or influence. Pushing the Envelope transcends narrow disciplines, commingling aeronautical science and technology, business management, international business, the history of science and technology, national security studies, and international relations. Written in nontechnical language, it can easily be understood by a diverse audience, including industry and military professionals as well as the general public interested in aviation and technology.

Winner of the 2021 Joan Thirsk Memorial Prize from the British Agricultural History Society​
2020 Choice​ Outstanding Academic Title​
Winner of the 2020 Turriano Prize from ICOHTEC
Short-listed and highly commended for the Antibiotic Guardian Award from Public Health England​
Long-listed for the Michel Déon Prize from the Royal Irish Academy​

Pyrrhic Progress analyses over half a century of antibiotic use, regulation, and resistance in US and British food production. Mass-introduced after 1945, antibiotics helped revolutionize post-war agriculture. Food producers used antibiotics to prevent and treat disease, protect plants, preserve food, and promote animals’ growth. Many soon became dependent on routine antibiotic use to sustain and increase production. The resulting growth of antibiotic infrastructures came at a price. Critics blamed antibiotics for leaving dangerous residues in food, enabling bad animal welfare, and selecting for antimicrobial resistance (AMR) in bacteria, which could no longer be treated with antibiotics. Pyrrhic Progress reconstructs the complicated negotiations that accompanied this process of risk prioritization between consumers, farmers, and regulators on both sides of the Atlantic. Unsurprisingly, solutions differed: while Europeans implemented precautionary antibiotic restrictions to curb AMR, consumer concerns and cost-benefit assessments made US regulators focus on curbing drug residues in food. The result was a growing divergence of antibiotic stewardship and a rise of AMR. Kirchhelle’s comprehensive analysis of evolving non-human antibiotic use and the historical complexities of antibiotic stewardship provides important insights for current debates on the global burden of AMR. This Open Access ebook is available under a CC-BY-NC-ND license, and is supported by a generous grant from Wellcome Trust.